class AidFill {
  static fillChar = "#";
  static insertFill(str: string): string {
    return str.split("").join("#");
  }
  static removeFill(str: string): string {
    return str.split("#").join("");
  }
}

function longestPalindrome(s: string): string {
    // max right!!!
  let max_center = 0,
    max_radius = 0;
  const s_len = s.length;
  for (let i = 1; i < s_len; i++)
    {

    }
}

console.log(longestPalindrome("sab"));
